Streamlined locomotive



June 11, 1940.

c. H. KNOWLTON ET AL 37 STREAMLINED LOCOMOTIVE Filed Nov. 3, 1938 4 Sheets-Sheet 1 IP21 l INVENTORS B ZMJ% June 11, 1940.

c. H. KNOWLTOIN ET AL STREAMLINED LOCOMOTIVE Filed Nov. 3, 1938 4 Sheets-Sheet 2 INVENTORS cfdaflu am ORNEY June 940- c. H. KNOWLTON ET AL 2,204,137-

STREAMLINED LOCOMOTIVE Filed Nov. 3, 1938 4 Sheets-Sheet 3 ll |||||||||||n I IIIIIIIII/II/I/I/I/II/I/I/Q w June 11,1940.

c, H. KNOWLTON El AL STREAMLINED LOCOMOTIVE 4 Sheets$heet 4 Filed Nov. 3, 1958 A; a T

I N VEN TOR M 5 Patented June 11, 1940 UNITED STATES PATENT OFFICE STREAMLIN ED LOCOMOTIVE Application November 3, 1938, Serial No. 238,674

6 Claims.

The advent of streamlining locomotives confronted builders with many problems relative to necessary parts of the locomotive which prevented the streamlining.

5 Our invention relates to the streamlining of the front end of the locomotive, taking care of the front end of the boiler, and the pilot and intermediate parts; and our invention consists of the parts and combination of parts hereinafter pointed out.

In the drawings:

Figure l is a perspective view of the front end of a locomotive showing our improvement in streamlining.

Figure 2 is a similar view of the front end of a locomotive showing the two halves constituting the streamlining proper open inorder to disclose their construction.

Figure 3 is a side elevation on an enlarged 20 scale of one of the halves comprising the streamline proper, viewing it from the inside.

Figure 4, is a front elevation of the co-acting half of the streamlining hood, viewing it from the outside.

25 Figure 5 is a fragmentary side elevation of a portion of one of the hoods showing more particularly the arrangements of the slits for permitting the egress of heated air that may accumulate within the hood.

Figure 6 is a detailed sectional View taken on line 66 of Figure 3.

Figure 7 is a horizontal section taken on line 'l-l of Figure 4, looking in the direction of the arrows.

85 Figure 8 is a transverse vertical section taken on the line 8-8 of Figure 3,,and showing the construction of the flange and the portion of the hood.

Figure 9 is a horizontal section taken on line 40 9-4 of Figure 1, and showing more particularly the construction in arrangement of the hand holds for permitting work upon the searchlight.

Figure 10 is a detail vertical section on line |-l0 of Fig. 1 through the cowling showing 46 in full and dotted lines the sliding foot rest.

The reference numeral 1 designates the 1000- motive in which the front wall of the smoke box is designated by the numeral 2 which is provided with a door 3 suitably hinged.

60 To streamline the front end of the boiler we provide two streamlined doors 4 and complementing each other and forming a hemispherical cowling for the front end of the boiler. While we have shown these doors, when closed, formll ing a hemisphere, it will be understood that the shape of the doors may be such as to blend with the streamlining feature of the locomotive.

The hemispherical portion 5 is made up of a front frame 5 having strengthening ribs 1, the frame iibeing provided at its base with an integral flange like projection 8. A streamlining I sheet ii] is suitably secured to this frame and to the flange 8, and the sheet ID is hinged to the front wall of the smoke box as at [0. It will be seen from the drawings that the front frame 6 projects substantially outwardly from the surface of the streamlining sheet l0, and constitutes a fin-like projection, or flange II, extending from the top to the bottom edge of the frame both above and below the headlight. This fin, or flange, II is interrupted about midway and at this point a headlight frame 12 is cast integral with the frame of the door 5. The headlight I3 is rigidly secured in this head light frame l2 and swings with the hemispherical section 5 when this section is moved.

The hemispherical section 4 is substantially of the same construction as the section 5 and its sheet I0 is fastened to its frame 6 and to a base flange '9 projecting therefrom and said sheet is hinged at It to the front wall of the smoke box. The section 4 differs from section 5 in that it has a semi-circular opening 15 which is adapted to receive the head light frame l2 when the two sections are in closed position. When the two sections are in closed position the fin ll of section 5 fits snugly against the fin l6 of the section 4 and when in this position their combined width presents a substantial, as well as ornamental fin or flange outstanding from the surface of the streamlining sheets of the two sections.

At points above and below the headlight l3, the fins II and ii are provided with sets of openings, each set comprising a counter-sunk opening I'i' extending through the fins I I, and an opening 18 extending through the fin l6 and terminating at its outer end in an enlarged recess l8.

A hand grip bar I9 is provided for engagement with each set of openings. Each bar 19 is formed with an enlarged bevel projection 20 adapted to fit in the countersink of the opening ll; said bar being also provided with a screw threaded portion 2! which is adapted to interengage with the screwthreads in the opening I8 of the fin l6, a nut 22 being provided to hold the hand grip 19 from becoming accidentally displaced. The object of these grip bars is to provide hand holds or grabs for the use of an operator to support himself while standing at the front of the locomotive and engaged in repairing or adjusting the headlight.

The cowling 23 is provided with a sliding foot rest 24 on which the operator stands while working on the headlight. This foot recess is slidable back and forth through an opening in the cowling to an advanced or projected position for use and to a retracted position when not in use. The cowling 25 covering the pilot is provided with steps 26, and a similar step 21 is formed in the cowling 23 to enable the operator to climb the front end of the locomotive when necessary or desirable. The cowling 25 is also provided with a door of any desired construction which may be opened to permit the locomotive coupler to be used.

The hemispherical doors 4 and 5 may be opened independently.

The flanges of the doors are secured together by bolts or other appropriate devices 28 when the doors are closed. Upon disconnection of these bolts and the removable hand grabs l9 the doors may be opened.

What I claim is:

1. In a locomotive, a cowling for the front end of the boiler comprising two doors hinged to the front of the locomotive, each door being in the shape of a quarter sphere and said doors being arranged with respect to each other to form a hemispherical front for the boiler when in closed position, one of the doors having a rest, and the other door carrying a headlight carrying frame adapted to be received into the recess of the firstnamed door in the closed position of said doors.

2. In a locomotive, a cowling for the front end of the boiler comprising two doors having inner meeting edges and hinged at their outer edges to swing toward and from each other at the front of the locomotive, one of said doors carrying at its meeting edge a headlight carrying frame and the other of said doors having a recess at its free edge to receive said frame in the closed position of the doors.

3. In a locomotive, a cowling for the front end of the boiler comprising two doors each in the shape of a quarter sphere and complementarily forming when in closed position a hemispherical cowling at the front of the boiler, said doors having meeting edges and being hinged at their outer edges to swing toward and from each other across the front of the locomotive, one of said doors having at its meeting edge, a head light carrying frame extending in part laterally therefrom and the other of said doors having a recessin its meeting edge to receive the projecting part of said frame when the doors are closed, outward- 1y extending flanges on the meeting edges of said doors following the contour of said front edges and adapted to abut when the doors are in closed position, and means connecting said flanges to hold the doors in closed position.

4. In a locomotive, a cowling for the front end of the boiler, comprising two doors each in the form of a quarter sphere and complementarily forming in closed position a hemispherical cowling at the front of the boiler, said doors having meeting edges and being hinged to swing toward and from each other at the front of the locomotive, one of said doors being provided at its meeting edge with a headlight carrying frame projecting in part laterally beyond said edge of said door and the other of said doors having at its meeting edge a recess to receive the projecting part of the head light frame when the doors are closed, an outwardly extending flange on the front edge of each of said doors adapted to abut when the doors are in closed position, and a hand grab associated with said flanges.

5. In a locomotive, a cowling for the front end of the boiler, comprising two doors each in the shape of a quarter sphere hinged at their outer edges to the locomotive and arranged to complement each other and form a hemispherical front end for the boiler, a headlight carrying frame integral with the front edge of one of said doors, a headlight mounted in said frame, the other door being provided with a recess into which the head light frame fits when the doors are closed, an outwardly extending flange on the front edge of each of said doors adapted to abut when the doors are in closed position, a hand grab associated with said flanges, a cowling extending from the bottom of said doors to the pilot, and a sliding step mounted on said last named cowling and adapted to be moved horizontally with respect to the boiler cowling.

6. In a locomotive, a cowling for the front end of the boiler, comprising two doors each in the form of a quarter sphere hinged at their relatively outer edges to the locomotive and arranged to complement each other and form a hemispherical front end for the boiler, a headlight carrying frame integral with the front edge of one of said doors, a headlight mounted in said frame, the other door being provided with a. re-

cess into which the head light frame fits when the doors are closed, an outwardly extending flange on the front edge of each of said doors adapted to abut when the doors are in closed position, a hand grab associated with said flanges,

a cowling covering the pilot, and steps formed in the last-named cowling.

CHASE H. KNOWLTON. GEORGE M. DAVIES. 

